│ +
Siebrand Lammers

(Est 1822 - Yes, date unknown)
                             │ +
Cornelis Martinus Leistikow

(20 Apr 1819 Delft, Zuid-Holland, Nederland - 13 Oct 1873 Deventer, Overijssel, Nederland)
                             │ +
Reintjen Toorneman

(1822 Bathmen, Overijssel, Nederland - Yes, date unknown)
                             ├─ Theodora Wilhelmina Grada Zuethoff

(Est 1835 Deventer, Overijssel, Nederland -
                             │ 21 Jan 1922 Rosmalen, Noord-Brabant, Nederland)
                             │ +
Ludovicus Hubertus Biesmans

(Est 1836 - Yes, date unknown)
                              +
Quirinus Gerritsen

(1824 Maaseik, Limburg, België - Yes, date unknown)
                              +
Gerrit Scholten

(1838 Epe, Gelderland, Nederland - Yes, date unknown)